Machine for cutting and forming ruling-pens



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UNITED STATES PATENT, EEIGE.

WILLIAM o. DEMAIN, or oAMBRIDeEPoaT, MASSACHUSETTS.

MACHINE FOR CUTTING AND FORMING RULING-PENS.

SPECIFICATION forming part of Letters Patent No. 274,932, dated March 27,1883.

l Application filed October 23, 1882. (No model.)

To all lwhom 'it may concern Y Be it known that 1, WILLIAM GORNEORTH DEMAIN, of Gambridgeport, in the county ot" Middlesex andV State of Massachusetts, have invented a new and useful Machine for Cutting and Forming Ruling-Pens, of which the following, taken in connection with the accomupon paper-ruling machines; and it consists vzo in certain details of construction and arrangements of parts, which will be best understood by reference to the description of the draw-` ings and to the claims to be hereinafter given.

Figure 1 of the drawings is a side elevation of a machine embodying my invention. Fig. 2 is a frontend elevation, and Fig. 3 is a transverse section through the cutting and shaping tools when in the position they occupy when thecutt-ing and shaping has been completed.

of the frame B, and provided at its upper end with the screwcenters c e, upon which is mounted thehandflever D in such a manner that it may be vibrated about said centers `at will.

E and E' are two cutters, arranged parallel to each other and at a distance apart just equal to thedistance from the outer or cutting corner of thexed cutter-blade c to the outer or cutting corner of the blade c', said cutters E and E' being secured together by means of the screws f j', and kept at the proper distance apart by the crimping-plate g and the fillingplates h and h', interposed between them, as shown in Fig. 3. The cutters E and E are each provided with a dovetail-shaped shank, fi, which ts into a correspondingly-shaped slot cut transversely across the under side ot' the lever D, n ear its pivoted end, bymeans of which and the set-screwj said cutters are ad- 5o justably secured to the lever D. The crimp-` ing-plate g is located centrally between the cutters E and'E, and is so set that the downward movement of the lever D will cause said plate to press upon the narrow piece of metal which rests upon the upper edges 'of the fixed cutter-blades c and c and force it downward between said plates c and c', and thus bend said strip partially around the edge of the plate g, so that its cross-section shall be in the forni ot' a letter V.

F is an upright plate, adjustably secured to the bed A hymeansof theslotted kneeslckand screws l l, and has secured upon its front side the adjustable tables mand n and the bearing o, in which is mounted the shaft G, provided at one end with the hand-wheel G' and at the other end with a male screw-thread, which works in the nut p, secured to the table a,

4whereby said table may be adj usted horizontally toward or from the lfixed cutters, said table being supported by said screw-shaft and the screws q q.

To the under side of the horizontal portion of the table a is secured the spring-inger r, which projects beyond theinner endl of thetable n, and has a portion of' its end turned upward atrightangles toits main body, asshown, to serve as a gage to determine the distance apart of the successive pens to be formed npon astrip of metal.'

The upright portion ot' the tablem has formed therein a vertical slot, s, which 4tits the guide s', so that said table may be adjusted vertically and secured in the desired position by means of the thulnb-nut t and bolt t.

The downward movement of the lever D and cutters E and E is limited by the stop-screw u, set in the frame B, as shown in Figs. l and 2.

The operation of myinvention is as follows: The'plate F being adjusted to the proper distance from the front ends of the cutterblades c and c', a strip of thin sheet-brass of the desiredwidth is placed upon the table in, with one edge in contact with the plate F., when the operator raises the leverD with his right=hand, moves the strip of brass toward the right with his left hand till its end rests upon the upper edges of the cutters c c. He then moves the lever D downward till the cutterE strikes the stop-screw u, making two incisions in the strip of brass and shaping a pen. He then raises the lever D, moves the strip again toward'the right, and places the upright portion of the gage r in the slit nearest the end of the brass IOO ' cutting and shaping a second pen at lthe required distance from the first one eut and shaped. This operation is repeated till a series of pens of the required number and the proper distance apart are cut and shaped, the whole series being connected together by a portion of the brass strip along one edge that is uncut.

The gage 1" may be readily and accurately adjusted to the proper position by means of the hand-wheel G', its screw-shaft G, and the scale H, graduated upon the plateF just above the table a, the left-hand edge of the upright portion of said table serving as the index to determine its proper location.

The pieces of metal between the several pens are severed from the strip or comb at the termination of the incisions by an after operation.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

l. The combination ofthe Xed cutters c and e', the two movable cutters E and E', and the crimping-blade g7V all constructed, arranged, and adapted to operate substantially as and for the purposes described.

2. The combination of the Xed cutters cand c',the movable critters E and E', the crimpingblade g, and an adjustable gage for determining the distance apart of the successive cuts, substantially as described.

3. The combination of the fixed cutterscand c', the movable cutters E and E', the crimping-blade g, the adjustable table n, the gage r, and the scale H, all arranged and adapted to operate substantially as and for the purposes described.

4. The combination ofthe fixed cutters c and f c', themovablecuttersE and E, and thecrimping-blade g', mounted upon the hand-lever D, the adjustable plate F, the adjustable tables m and n, and the graduated scale H, all arranged and adaptedA to operate substantially as and for the purposes described.

In testimony wbereofI have signed my name to this specification, in the ypresence of two subscribing witnesses, on this 20th day of October, A. D. 1882.

WM. CORNFORTH DEMAIN.

Witnesses:

E. A. HEMMENWAY, WALTER E. LOMBARD. 

